powerpc/eeh: Use safe list traversal when walking EEH devices
Currently, we're trasversing the EEH devices list using list_for_each_entry(). That's not safe enough because the EEH devices might be removed from its parent PE while doing iteration. The patch replaces that with list_for_each_entry_safe(). Signed-off-by: NGavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
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